Casio CTK 3500 (electronic keyboard) doesn't turn on
I've Casio CTK 3500, which I purchased in 2019. It was working fine till last week but suddenly it stopped turning on. I'm not sure what happened as nothing has changed. I'm using the same old adapter that used to work, using the same generic pedal that I've always used.
The bars on LCD blink while pressing the power button but as soon as I release the power button, it goes off.
I also checked my adapter using a multimeter (no idea what I'm doing here, just followed some youtube video), and the output was 9.5V - 9.6V, so I think the adapter is okay. Is there any hard reset key that I'm unaware of?
I also cleaned everything inside with a brush along with alcohol. The power button looks fine to me, no circuit break or anything suspicious (Although, I don't know much so don't take my word for it, please check the images).
How can I fix it?
Image of the motherboard: https://imgur.com/a/6Kp9YzY
Current behavior: https://www.youtube.com/watch?v=a5bvc-YNraw
Please help me fix it.
The bars on LCD blink while pressing the power button but as soon as I release the power button, it goes off.
I also checked my adapter using a multimeter (no idea what I'm doing here, just followed some youtube video), and the output was 9.5V - 9.6V, so I think the adapter is okay. Is there any hard reset key that I'm unaware of?
I also cleaned everything inside with a brush along with alcohol. The power button looks fine to me, no circuit break or anything suspicious (Although, I don't know much so don't take my word for it, please check the images).
How can I fix it?
Image of the motherboard: https://imgur.com/a/6Kp9YzY
Current behavior: https://www.youtube.com/watch?v=a5bvc-YNraw
Please help me fix it.